Question

differentiate between buna-sand terylenebased on their intermolecular forces of attraction ?

Answer 1

Buna-S is an elastomer. In this polymer, chains are held by weakest intermolecular forces and due to this they are stretchable.

Terylene on the other hand, is a fibre. There are strong intermolecular binding forces like hydrogen bonding which leads to close packing of chains.

Thus. terylene is stronger than Buna-S.